Radiator cap



Feb. 24, 1925.

C. A. BUTLER RADIATOR CAP Filed June '25, 1923 ll/lr V TOR.

A ITORNEYS.

Fe ix). 192235 55 T A T ill S UIDYDE A. BUTLER, 01E SEBASTOPOL, CALIFORNIA.

RADIATOR GAP.

Application filed June 25, 1923.

To all whom it may concern Be it known that T, CLYDE A. BUTLER, a

citizen or the United States, residing at Sebastopol, in the county of Sonoma and State of California, have invented new and useful improvements in Radiator Caps, of which the following is a specification.

This invention relates to new and useful improvements in radiator caps.

The principal object'of thisinvention is to produce a radiator cap which will elimi nate the necessity of unscrewing the cap or unlocking the cap as is now customary in a device of this character.

Another object is to produce a device within which is formed'a motor meter or temperature indicator.

A still further object is to produce a device of this character which may be applied an to any automobile radiator now upon the market and one which is simple in. construction and thereforecheap to manufacture.

A still further object is to produce a device which is ornamental in appearance and one which may be quickly operated.

Other objects and advantages will be apparent during the course of. the following description. I

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designatelike parts throughout the same,

Figure 1 is a side elevation of my device as applied to an automobile radiator, the full lines being the closed position and the dotted lines the open position.

Figure 2 is a cross section taken on the line 22 of Figure 3, and

Figure 3 is a cross section taken on the line 3--3 of Figure 1 showing the parts in open position. J

It is often necessary to fill a radiator while the same is very hot, the result being that with the ordinary screw top, the operator is apt to burn his hands,'the same is true with the top which is locked or clamped down.

-I have therefore proposed to provide a top having a single movable top extending an appreciable distance away from the device, which results in-a cool surface which may be easily handled so as to move the same from a closed position to an open position.

.In the accompanying drawings wherein for the purpose ot' illustration isyshown a lti as shown at 9 and 11.

' the full line Serial No. 647,698.

preferred embodiment of my invention, the numeral 5 designates a base which is internally threaded as shown at 6 in order to engage the external thread upon the customary7 nipple of the radiator top indicated at This base 5 has formed integral therewith a tapered neck portion 8. This neck is biturcated and has formed thereon bearings A funnel 12 is now 1 provided, which funnel has formed within its bore bossses 13 and 14, which are adapted to be in line with the bearings 9 and 11. The funnel 12 has formed integral therewith, a spherical portion 16. 1

At 17 and 18 I have shown two substan tially semi-spherical plates which are held upon the bearings 9 and 11 as by screws 19 and 21, respectively.

By viewing Figure 3 it will be noted that 1 these screws 19 and 21 are each provided with a reduced end portion, as shown at 22 and 23. These reduced end portions extend through the bosses 13 and 14 of the funnel 12 and serve as pivots therefor.

At 24 is shown a tube extending through the reduced portion 8 and held therein Joyv a lock nut 26. This tube is adapted to con,- /tain an expansive fluid so as to expand, when heated, into the glass tube 27, which tube-is mounted behind a glass window 28 held within a suitable casing 29. This casing is supported upon the device as a,whole by the screws 19 and 21 (see Figure 1) through the medium of the arms 32 and 33.

It will thus be seen that I have produced alradiator cap which may be secured to the ordinary radiator of a motor vehicle and one which when the funnel is moved about its pivots to the position shown in full lines in Figure 1, will be closed as the parts will assume a position shown in dotted lines in Figure 2, and when the funnel is moved to position "of Figure 2 (dotted line position of Figure 1) a tree passage will be formed to the interior of the radiator. I

The funnel shape of the part 12 also assists in the filing operation, giving a large openingand at the same time presenting a 1 very neat appearance.

It is to be understood that the form of my invention, herewith shownand described is to be taken as apreferred example of the same and that various changes in the shape, 11

size and arrangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim 1. In a device of the character described a base, gral therewith, said base being internally threaded bearings mounted on said base, a funnel pivoted to said bearings, a spherical portion formed integral with said funnel and semi-spherical lates secured to said bearings and enclosing a portion of said a reduced portion formed intefunnel substantially as and for the purpose described.

2. In a radiator cap, a base, a neck secured to'said base, said neck having a bifurcated portion, bearings formed on said bifurcated portion, semi-spherical portions mounted on said bearings, a funnel secured to said bearspherical portions formed on said funnel and adapted to engage the semi-spherical portion carried on said bearings, for the purpose specified.

In testimony whereof 1 affix my signature.

CLYDE BUTLER.

and adapted to be rotated thereabout, 

